To remove something partially or fully ( from something's surface ) by peeling it. A noun or pronoun can be used between "peel" and "back. "I love peeling back the protective plastic they put on the screens of brand new smartphones.  
 ...  [مشاهده متن کامل]  
Be careful when you peel those stickers back, or you could rip the paper. 
peel something back ( from something ) 
to lift something away from the surface of something. He peeled the sheets back from the bed and got in. He peeled back the sheets and got into the bed. 
https://idioms. thefreedictionary. com/
یک چیزی را از روی چیز دیگری کنار زدن، برداشتن یا بلند کردن
مثلا کنار زدن ملحفه یا کَندن پلاستیک روی سطوح نو یا باز شدن لب ها به نشانه ی خنده یا عصبانیت یا انزجار یا هرحسی.